baber/WOPTO huggingface dataset:
Patent KR-20020054206-A (KR)
Title: Communication method of between client/server based EJB
Inventor: HAN SEONG BAE
IPC: G06F15/00
Filed: 2000-12-27
Abstract: PURPOSE: A client and server communication method is provided to support a perfect distribution processing method, to make it easy optimizing a size and a performance, to enhance a modularity and a maintenance performance, and to increase an extensibility, a performance and a safety by defining a communication method between an EJB(Enterprise Java Beans) component server and an EJB based client. CONSTITUTION: The method comprises steps of defining an EJB remote interface(301), selectively generating CORBA IDL(Interface Definition Language) by executing the EJB remote interface and using an "RMI2IDL" interpreter(302), compiling the interface by using a JAVA compiler(303), generating an IIOP stub and a skeleton for a remote class by executing an "RMI2IIOP" preprocessor for "class" file, and enabling the preprocessor to generate a helper class as well as the stub and the skeleton for a remote factory interface(304), implementing a servant for offering a Java server class implementing a remote interface to be opened externally(305), and compiling the EJB class by using the Java compiler(306).
Patent KR-20020054222-A (KR)
Title: Optimal searching method of DS-CDMA signal composed of time multiplexed known symbols and unknown symbols
Inventor: BANG SEUNG CHAN
IPC: H04Q7/38
Filed: 2000-12-27
Abstract: PURPOSE: A method for optimally searching for a DS-CDMA signal composed of a pilot symbol and a control symbol in time division and an apparatus thereby are provided to maximize the performance of a receiver in the case of searching for a signal or measuring the SIR(Signal to Interference Ratio) using a direct sequence band-spread signal. CONSTITUTION: Despreaders(24A-24M) execute complex despreading as much as symbol length using code phases for M numbers of hypotheses. In case that the field of the currently despread signal is a pilot symbol field, the output of each decimator(25A-25M) is inputted to each coherent accumulator(26A-26M). If the field of the currently despread signal is a control symbol field, the output of each decimator(25A-25M) bypasses each coherent accumulator(26A-26M). Each square combiner(27A-27M) squares the real part and imaginary part of the output of each decimator(25A-25M) or the output of each coherent accumulator(26A-26M) respectively and adds up them. Each multiplier(28A-28M) multiplies the output signal of each square combiner(27A-27M) by a weight corresponding to the slot format of the present mobile station's transmitting signal. Each non-coherent accumulator(29A-29M) accumulates the values received from each multiplier(228A-28M) or each square combiner(27A-27M) through many slot lengths. These accumulated values are inputted to a decision device(30).
Patent KR-20010062809-A (KR)
Title: Electrical contact with orthogonal contact arms and offset contact areas
Inventor: TIMOTHY B BILLMAN
IPC: H01R13/658
Filed: 2000-12-28
Abstract: PURPOSE: An electrical contact with orthogonal contact arms and offset contact areas is provided to allow the electrical contact to be used in very small contact pitch connectors which have good contact wipe characteristics, relatively low mating force characteristics, and good electrical contact with a mating male contact. CONSTITUTION: An electrical contact comprises a base(22); a first contact arm(18) extending from the base in a forward direction in a general cantilever fashion, and which has a first contact area; and a second contact arm(20) extending from the base in the forward direction in a general cantilever fashion, and which has a second contact area. The first and second contact arms form a male contact receiving area therebetween, wherein the first and second contact arms are generally transverse to each other with a relatively narrow side edge of the first contact arm forming the first contact area and facing a relatively wide side face of the second contact arm which forms the second contact area. The first and second contact areas are at least partially longitudinally offset from each other along a path of insertion of a male contact into the male contact receiving area, and wherein the first and second contact areas overlap in a direction through the path of insertion of the male contact.
Patent KR-20020054727-A (KR)
Title: device for absorbing vibration of discharge valve in rotary compressor
Inventor: AHN BYEONG HA
IPC: F04C18/00
Filed: 2000-12-28
Abstract: PURPOSE: A device for absorbing vibration of discharge valve of rotary compressor is provided to reduce vibration and noise generated in the compressor by absorbing noise generated by the discharge valve colliding against a retainer. CONSTITUTION: A device includes a main bearing(150) placed on an upper part of a cylinder having a refrigerant outlet(151) fluidically connected with a compression chamber in the cylinder and a bolt coupling hole(153) formed separately from the refrigerant outlet; a discharge valve(171) opening and closing the refrigerant outlet; a retainer(173) limiting opening height of the discharge valve; a bolt(175) coupling the retainer and the discharge valve with the bolt coupling hole of the main bearing; and a damping member(177) installed between the discharge valve and the main bearing to absorb vibration due to collision between the discharge valve and the retainer on discharge of refrigerant.
Patent KR-20020058856-A (KR)
Title: Integrated beam structure for vehicles
Inventor: PARK SANG JUN
IPC: B62D25/00
Filed: 2000-12-30
Abstract: PURPOSE: An integrated beam structure for a car is provided to simplify assembly by reducing the number of components, to increase strength, to reduce noise and weight, and to improve performance of air flow. CONSTITUTION: An integrated beam structure for a car includes an air duct support assembly(110), a center support bracket(120), a steering column bracket(130), and a number of extension ducts(140). The air duct support assembly is mounted on overall length of a car. The center support bracket has an end connected to the center of a side of the air duct support assembly and the other end mounted on a floor of the car, supports the air duct support assembly. The steering column bracket is mounted on the air duct support assembly and supports the steering column. The extension ducts are mounted on the air duct support assembly in a front direction of the air duct support assembly, and discharges air.
Patent KR-20010031862-A (KR)
Title: 데이터베이스를 업데이팅하기 위한 방법 및 장치
IPC: G06F17/30
Filed: 1998-10-14
Abstract: 데이터베이스를 업데이팅하기 위한 방법 및 장치가 개시되어 있다.  데이터베이스는 WWW(World Wide Web) 상의 웹 사이트와 인터페이스하기 위해 IDL(Interface Descriptive Language)를 이용함으로써 명백하게 업데이팅된다.  멀티-미디어 정보를 분석함으로써 수신된 정보는 어플리케이션 또는 사용자가 사용하기 위한 어플리케이션 프레임워크로 통합될 수 있다.  디바이스가 새로운 위치로 이동하거나 특정한 이벤트가 발생할 때 업데이팅이 행해질 수 있고, 전체 시스템 또는 특정한 어플리케이션을 재구성하는데 사용될 수 있다.  임의의 실시예에서, 디바이스는 새로운 데이터베이스를 얻기 전에 특정한 데이터베이스가 이미 사용한지를 확인한다.  디바이스는 사용되지 않은 데이터베이스를 제거함으로써 새로운 또는 별도의 데이터 베이스를 제공할 수 있다.
Patent KR-20010052213-A (KR)
Title: χ디에스엘, 특히 브이디에스엘 모뎀에서의 클락 타이밍복구 방법 및 장치
IPC: H04L27/38
Filed: 1999-03-18
Abstract: 노이즈, 높은 손실, 높은 왜곡(distortion)을 주는 와이어를 통해 마스터 χDSL 모뎀과 슬레이브  χDSL 모뎀 간에 전송되는 데이터의 빠른 타이밍 복구를 위한 모뎀 및 그 방법. 전송된 QAM 심볼은 슬레이브 모뎀에서 수신되고 샘플링된다(10). 샘플링된 데이터는 인-페이즈(in-phase: I) 및 구적(quadrature: Q) 채널(11)(12)로 분할되고, 각각은 각 필터(13)(14)에 의해 필터링된다. 필터링된 I 및 Q 출력은 심볼 속도의 두 배에서 샘플링되고  샘플링된 일련의 I 및 Q 출력 각각을 두 이산 타임 시퀀스(discrete time sequence), cos(0.5πn)= ...,1,0,-1,0,...와 sin(0.5πn)= ...,0,1,0,-1,.. 로 변조함에 의해 하부 및 상부 밴드 에지 성분이 추출된다. 각 결과는 1차 저역필터(26)(27)로 필터링되고 심볼속도로 재-샘플링된다. 비트 에러 비율(Bit Error Rate)이 계산되고(28), 비트 에러 비율이 충분히 감소된 후 슬레이브 모뎀이 블라인드 타이밍 복구 모드에서 데이터 유도 타이밍 복구 모드(data directed timing recovery mode)로 전환된다.
Patent KR-20010042254-A (KR)
Title: 점유자 보호 장치를 위한 버스 시스템에서 전력과데이터를 전송하기 위한 방법
IPC: B60R16/023
Filed: 1999-03-09
Abstract: 본 발명은 점유자 보호장치(1.1)용 버스 시스템(5)에서 전력과 데이터를 전송하기 위한 방법에 관련된 것으로서, 상기 버스 시스템(5)에 의해, 디지털 데이터는 중앙 처리 장치(7)와 트리거 될 수 있는 점유자 보호 장치들(1.1)의 다수의 제어 모듈들(6)사이에서 교환된다. 상기 점유자 보호 장치들은 특히 모터 운송수단에서 사용된다. 상기 제어 모듈들은 상기 중앙 처리 장치에 연결되어 통신하게 된다. 본 발명의 방법에 따르면, 전력은 상기 버스 시스템(5)을 거쳐서 상기 제어 모듈들(6)에 공급된다. 점유자 보호 장치(1.1)의 주변 장치 제어 모듈(6)에 공급된 에너지 저장 장치(1.4)는 상기 점유자 보호 장치가 트리거 되면 방전된다. 상기 에너지 저장장치들은 상기 트리거링 뒤에 재충전되어야 한다. 그러나 데이터 전송을 위해서도 요구되는 상기 버스시스템은 트리거링 뒤에 즉시 재충전 프로세스가 진행된다면 대량의 로드가 걸리게 된다. 동적 버스 시스템 로드는 다른 제어 모듈들의 전달도 추가적으로 보장 되도록 함으로써 피할 수 있다. 이것은 트리거된 점유자 보호장치들(1.1)의 에너지 저장장치(1.4)의 재충전을 억제함으로써 가능하며, 바람직하게는 리셋 명령이 내려질 때까지 억제되어야 한다. 본 발명은  특히 모터 운송장치에 사용되는 점유자 보호 장치들(1.1)용 버스 시스템에 사용하기 위한 것이다.
Patent KR-20010042454-A (KR)
Title: 스프링 밴드의 캠버 부분 성형 방법 및 장치
IPC: B21D53/88
Filed: 1999-02-24
Abstract: 본 발명은 스프링 밴드에 캠버 부분을 형성하기 위한 캠버 부분 성형 방법과 성형 장치에 관한 것으로서, 스프링 밴드의 두께는 상기 캠버 부분의 길이에 걸쳐 변화한다.  본 발명의 목적은 정확한 허용 오차를 통하여 입체적으로 안정된 굽힘 반경을 얻고자 하는 것이다.  이를 위하여, 스프링 밴드는 상호 이격된 3개의 지지점(23 내지 25)으로 구성된 굽힘 유닛(20)과 스프링 밴드의 진행 방향으로 하류쪽에 위치하며 제 4 지지점(32)으로 이루어진 반전 굽힘 유닛(22)을 통과한다.  굽힘 및 반전 굽힘 스프링 밴드 부분(11)은 절단 장치(21)에서 스프링 밴드(10)로부터 절단된다.  굽힘 유닛(20)의 중간 지지점(24)과 반전 굽힘 유닛(22)의 제 4 지지점(32)은 변위될 수 있도록 형성될 뿐만 아니라 NC 제어 유닛(29)에 의하여 소정의 프로그램에 따라 스프링 밴드(10)에 대한 상대적 위치가 조절될 수 있다.
Patent KR-20010052366-A (KR)
IPC: C22B5/12
Filed: 1999-05-08
Abstract: A process is described for the production of metal powder and alloy powders containing at least one of the metals iron, copper, tin, cobalt or nickel, by mixing aqueous metal salt solutions with an aqueous carboxylic acid solution, separating the precipitation product from the mother liquor and reducing the precipitation product to the metal.
Patent KR-20010070473-A (KR)
Title: Water-soluble or water-swellable crosslinked copolymers
Inventor: LOEFFLER MATTHIAS
IPC: A61K8/81
Filed: 2001-01-09
Abstract: PURPOSE: Provided are a water soluble or water-swelling cross-linked copolymer based on acrylamido alkylsulfonic ammonium salt and cyclic N-vinylcarboxamide, or cyclic and linear N-vinylcarboxamide, a method for preparation and use of the same such as a thickening agent, emulsifying agent, dispersing-stabilization agent, and/or an emulsifying agent for cosmetic and/or pharmaceutical composition. CONSTITUTION: The copolymer is constituted substantially by a mixture of a recurring unit expressed by formula(1) or a recurring unit expressed by formula(2) and a recurring unit expressed by formula(3) (wherein n is integer ranged of 2 to 9; R, R1 and R2 are same or different, hydrogen, linear or branched alkyl groups or alkenyl group; R3 is a hydrogen, methyl or ethyl group; Z is C1-C8 alkylene; X is an alkali metal or alkali earth metal ion. These copolymers are cross- linked by a compound having at least 2 olefinic double bonds.
Patent KR-20020061693-A (KR)
Title: System for power supervision using demand controller having TCP/Ethernet Communication Device
Inventor: CHOI HAE SUL
IPC: G06F15/00
Filed: 2001-01-17
Abstract: PURPOSE: A system for managing the electric power using a maximum electric power managing device embedding a TCP(Transmission Communication Protocol)/Ethernet communication tool is provided to enable a manger to monitor the electric power situation of a load in a remote place by using a computer terminal capable of connecting to the Internet communication network. CONSTITUTION: The system comprises the maximum power managing device(10), a wattmeter(12) supplying an electricity pulse to the maximum power managing device and a local area monitoring computer terminal(14) carrying out the communication for the load monitoring and the management control to the maximum power managing device in an RS-232C communication mode. The computer terminal(18) for monitoring within a company remotely carries out the communication for the load monitoring and the management control to the maximum power managing device through a LAN. The computer terminal(20) for the remote monitoring carries out the communication for the load monitoring and the management control to the maximum power managing device remotely through a gateway(16) and the Internet communication network.
Patent KR-20010087165-A (KR)
Title: Thermal infrared detector provided with shield for high fill factor
Inventor: ODA NAOKI
IPC: G01J5/20
Filed: 2001-01-30
Abstract: PURPOSE: To realize a thermal infrared detector in which an open area ratio is in creased, in which a thermal time constant is hardly increased and whose sensitively is made higher. CONSTITUTION: An infrared reflection film 2 and a first insulating protective film 3 are laminated on a silicon substrate 1 which comprises contact pads. An infrared light receiving part 5 is supported by a support 6 which is composed of a beam 6a and a support leg 6b in such a way that it is separated by a hollow part 4 from the surface of the first insulating protective film 3. The infrared light receiving part 5 is constituted of a thermistor bolometer thin film 7. The light receiving part 5 is constituted of an insulating protective film 8 which covers the thermistor bolometer thin film 7 and which absorbs infrared rays. The light receiving part 5 is constituted of an electrode part 13 which is connected to the thermistor bolometer thin film 7. An eaves part 12 protrudes from a part which is different from a part corresponding to the electrode part 13 on the surface on the opposite side of the side of the silicon substrate 1 of the insulating protective film 8. The electrode part 13, the support part 6 and respective faces on the opposite side of the side of the silicon substrate 1 of the contact pads are covered with the eaves part 12 by keeping a space.
Patent KR-20020064092-A (KR)
Inventor: KOO HYUN SA
IPC: G06Q30/02
Filed: 2001-01-31
Abstract: PURPOSE: A method for evaluating special knowledge and aptitude of interview objected person is provided to apply a special knowledge and information to an individual objected person and test the person and utilize the result as personnel management information of a company by receiving the special knowledge and information with respect to an aptitude test from a special human resources managing company to a general company through the Internet. CONSTITUTION: Information of an application company is registered for testing a special knowledge and an aptitude of an applicant(202). If a demand of an evaluation actually is generated, basic information with respect to the applicant and an item to be evaluated are transmitted to a server(204). Questions and answers for evaluating a special knowledge and an aptitude are constructed in a database of the server in advance(206). If an evaluation application is received actually, total question for evaluating only corresponding applicant is constructed(208). The corresponding applicant is connected through the Internet and answers to the total question and transmits the answer to the server. The transmitted answer is marked through a computer algorithm. Collected information with respect to the applicant is processed and used as special personnel management information.
Patent KR-20020064471-A (KR)
Title: Manufacturing method of pine charcoal and novel use thereof as an anticancer agent
Inventor: HOANG SENG HA
IPC: C11D9/06
Filed: 2001-02-01
Abstract: PURPOSE: A manufacturing method of pine charcoal and its use as a new anticancer drug are provided to achieve doses for oral administration capable of effectively restricting the metastasis of tumor by mixing pine charcoal with any medical composition. CONSTITUTION: The pine charcoal is manufactured by splitting pine branches and then throwing the split pine branches to a stainless steel furnace while inputting steam at a temperature of 850deg.C to carbonize them, thus completely removing a tar component from them, and after that cooling them into liquid nitrogen. An appropriate amount of pine charcoal can be mixed with any certain medical composition to achieve various medicines including an effective anticancer drug, a toothpaste, a soap, and the like.
Patent KR-20020066123-A (KR)
Title: Wave power generating apparatus and method thereof using water-turbine
Inventor: LEE GANG BOK
IPC: F03B13/22
Filed: 2001-02-09
Abstract: PURPOSE: A water turbine type wave power generation apparatus and method therefore are provided to improve the simplicity of a structure and easiness of the manufacturing operation by producing the electricity extracting available energy from the sea wave using the water turbine. CONSTITUTION: A water turbine type wave power generation apparatus is composed of a plurality of cylindrical tubes(3) installed through a floating member(4), a plurality of generators(1) installed at the floating member(4) at the upper side of the tubes(3), a water turbine(2) installed in the tubes(3). The water turbine(2) is engaged with the generator(1) by a power transmission(5). By installing the water turbine(2) at the floating member(4), the generator(1) is driven with the rotating force of the water turbine by the heave and pitch movements of the floating member.
Patent KR-20020066531-A (KR)
Title: Apparatus and method for protecting memory
Inventor: KIM GI BONG
IPC: G06F12/16
Filed: 2001-02-12
Abstract: PURPOSE: A method and an apparatus for protecting a memory are provided to prevent a malfunction of a write mode, although the logical value of a control signal is reversed, by considering and controlling two control signals related to the write mode at once. CONSTITUTION: A microprocessor(10) creates a write and download control signal when a write command is inputted from a keyboard. A logical circuit(20) composed of an inverter(21) and NAND gate(22), creates a final write control signal when both the write and the download control signal are satisfied with the write condition. A memory(30) is used to write the data corresponding to the logical value of the final write control signal.
Patent KR-20020067308-A (KR)
Title: Diagnostic Method of Arteriosclerotic Heart-related Disease Such as Myocardial Infarction and Stenocardie Using Troponin I and T As an Marker, and Diagnostic kit and Analyzer Thereby
Inventor: CHOI MI YEONG
IPC: G01N33/53
Filed: 2001-02-16
Abstract: PURPOSE: Provided is a diagnosis method of arteriosclerosis heart diseases wherein myocardium troponin I and T as a myocardium marker which applies a single clone antibody with peculiarity so that it enables to measure the concentration of myocardium troponin I and T within blood sample exactly. CONSTITUTION: The diagnosis method of arteriosclerosis heart diseases wherein myocardium troponin I and T as the myocardium marker is characterized by grouping the single clone antibody against myocardium troponin I and T to display as the marker and measuring the concentration of myocardium troponin I and T existed in the blood through an immune reaction between antigen and antibody.
Patent KR-20020067382-A (KR)
Title: Code generating and decoding apparatus and method in communication system
Inventor: HA SANG HYEOK
IPC: H03M13/00
Filed: 2001-02-16
Abstract: PURPOSE: An encoding and a decoding apparatus in a communication system and a method for the same are provided to generate quasi complementary turbo codes by considering characteristics of turbo codes. CONSTITUTION: An encoder(101) encodes inputted encoder packets and outputs symbols. A convolutional encoder or a turbo encoder is used as the encoder(101). The encoder(101) outputs symbols of 15360 bits if a code rate of the encoder(101) is 1/5 and data of 3072 bits are inputted. A channel interleaver(102) interleaves the symbols generated from the encoder(101) according to a predetermined rule. A QCTC puncturing/repetition portion(103) punctures and repeats the interleaved signals of the channel interleaver(102) and outputs quasi complementary turbo codes.
Patent KR-20020067755-A (KR)
Title: Job offer and job application service system using expert recommendation and method thereof
Inventor: KIM SANG BAE
IPC: G06Q30/06
Filed: 2001-02-19
Abstract: PURPOSE: A system and a method for the job-seeking/offering service through the expert recommendation are provided to improve reliability of the personal member information through an expert recommendation method. CONSTITUTION: A server comprises a personal information input part enabling the member to input the information necessary for the employment, a talented person searching part for searching the talented personal necessary for a company, and a recommendation letter requesting part requesting a recommendation letter to a guide expert of the department of the university that the member graduates. A terminal of the guide experts transmits the recommendation letter by receiving the request from a job-seeking and job-offering service company. A DB stores the personal information of the member inputted through the personal information input part and the recommendation letter transmitted from the guide advisors.
Patent KR-20020068094-A (KR)
Inventor: KIM SEONG JUN
IPC: C22C38/26
Filed: 2001-02-20
Abstract: PURPOSE: A method for manufacturing high strength microalloyed steel for hot forging by conversion of its structure from ferrite-pearlite to bainite structure is provided. CONSTITUTION: The method for manufacturing high strength microalloyed steel having bainite structure for hot forging includes the steps of (i) melting a steel comprising C 0.15-0.25 wt.%, Mn 1.5-2.5 wt.%, Si 0.20-0.50 wt.%, Cr 0.50-1.50 wt.%, V 0.10-0.15 wt.%, Al 0.05 wt.% or less, S 0.040 wt.% or less, Cu 0.50 wt.% or less, Nb 0.10 wt.% or less, Ti 0.030 wt.% or less, with a balance of Fe and other unavoidable impurities; (ii) tapping the molten steel so as to transform it into ingot; (iii) reheating the ingot in a conventional manner; (iv) rolling the reheated ingot so as to transform it into cylindrical bar or square bar; (v) reheating the cylindrical bar or square bar at a temperature range of 1,050-1,100°C for hot forging; and then (vi) cooling it at a rate of 10-20°C/sec.
Patent KR-20010083224-A (KR)
Title: Optical disk recording method and recording and/or reproducing apparatus
Inventor: KAWASHIMA TETSUJI
IPC: G11B7/0045
Filed: 2001-02-21
Abstract: PURPOSE: To collate an optical disk in accordance with the reproducing method of the reproduction exclusive optical disk. CONSTITUTION: The system of a tracking error signal is different with respect to a recordable optical disk and the reproduction exclusive optical disk, and the device is provided with a read-out processing part 21 for reading out data from the optical disk, a write-in processing part 22 for writing the data into the optical disk, and a system control part 26 for controlling so that the recordable optical disk wherein the data are recorded by the write-in processing part 22, is collated with the reproducing method according to the specification of the reproduction exclusive optical disk.
Patent KR-20010044556-A (KR)
Inventor: KIM JENG SO
IPC: A63B69/36
Filed: 2001-03-07
Abstract: PURPOSE: Provided is an automatic golf putting practice apparatus to make an environment like a field by forming a foot step beside a golf mat and heightening the step and the mat enough. CONSTITUTION: The apparatus comprises a golf mat(1) and a control box(2). The control box(2) includes a ball box(3) supplying a ball by using a motor and motor to control the number of ball supply. Two wings and a motor stop stick are inserted in a motor shaft. The wings push a ball and the stick rotates the motor by contacting with a motor stop switch for pushing a ball at a time. A rotating wing pulls a ball up.
Patent KR-20010098410-A (KR)
Title: 저방향족 탄화수소용제와 직쇄 파라핀의 제조방법 및 그용제를 사용한 감압복사재료
IPC: C10G45/00
Filed: 2001-03-19
Abstract: 등유유분을 수소첨가 탈유황 하는 공정(1), 가스 및 경질분을 제거하여 유황함유량이 5ppm 이하인 저유황 등유유분을 얻는 공정(2), 합성제오라이트로 이루어지는 분자체에 의해 등유유분으로부터 직쇄 파라핀을 분리회수하여 잔유를 얻는 공정(3), 잔유를 핵수소화하여 방향족 탄화수소의 함유량이 1중량% 이하인 용제를 얻는 공정(4)으로 이루어지는 저방향족 탄화수소용제 및 직쇄 파라핀의 제조방법 및 상기 방법에 의해 얻어지는 저방향족 탄화수소용제를 사용한 감압복사재료. 상기 저방향족 탄화수소용제는 악취가 적고, 인체에 대하여 독성을 나타내지 않고, 또한 발색제의 용해성 및 발색성능이 우수하여, 감압복사재료용의 용제로서 유용하다.